When using the Intel® Arria® 10/Cyclone® 10 Hard IP for PCI* Express Avalon-ST, why is the host system unable to detect the PCIe link or fail to boot up from BIOS?

Due to a problem with the Intel® Quartus® Prime Pro Edition software version 19.3, you may encounter the above problem, this is due to an incorrect implementation of the pld_clk_inuse signal of the Intel® Arria® 10/Cyclone® 10 Hard IP for PCI* Express.

A patch is available to fix this problem. Download and install patch 0.26 for Intel® Quartus® Prime Pro Edition software version 19.3.

Download patch 0.26 for Windows* (quartus-19.3-0.26-windows.exe)

Download patch 0.26 for Linux* (quartus-19.3-0.26-linux.run)

Download the Readme for patch 0.26 (quartus-19.3-0.26-readme.txt)

This problem is fixed beginning with the Intel® Quartus® Prime Pro Edition software version 19.4.